It follows Sunday’s announcement by Grigor Dimitrov that he had also tested positive after pulling out of the exhibition event, which is one of the biggest since the tennis season was halted because of the pandemic. Coric tweeted: “I want to make sure anyone who has been in contact with me during the last few days gets tested! “I am really sorry for any harm I might have caused! I’m feeling well and don’t have any simptoms (sic). Please stay safe and healthy! Lots of love to all!” One of Djokovic’s coaches and another member of Dimitrov’s entourage have also reportedly tested positive for the virus, according to Croatia’s N1 television channel. Coric had beaten Bulgaria’s Dimitrov in the second leg of the Adria Tour in Zadar on Croatia’s Adriatic coast on Saturday. Dimitrov withdrew from the Balkans tournament following that match, complaining of feeling unwell. Sunday’s final between Djokovic and Russia’s Andrey Rublev was immediately canceled as a precaution. Australian star Nick Kyrgios responded to Coric’s tweet by describing the staging of the tournament as “boneheaded.” “Boneheaded decision to go ahead with the ‘exhibition,’” Kyrgios wrote on social media. “Speedy recovery fellas, but that’s what happens when you disregard all protocols. This IS NOT A JOKE.” Also playing in the tournament were world No. 3 Dominic Thiem, former US Open winner Marin Cilic, seventh-ranked Alexander Zverev and Filip Krajinovic. Responding to Dimitrov’s positive test on Sunday, Djokovic’s brother Djordje, the tournament director, told Sportske Novosti: “Novak? He took this news very hard. We undertook all the measures prescribed by the governments of Serbia and Croatia.” The news of Coric’s positive test emerged as Serbian football league champions Red Star Belgrade reported that 5 of their players had gone down with coronavirus just 12 days after their derby clash with Partizan Belgrade. The game was watched by 16,000 fans, the largest sporting gathering seen in Europe since the continent went into lockdown in March. The Adria Tour had been organized to fill the gap in the virus-hit tennis calendar which has been on ice since mid-March and was played out to a daily crowd of 4,000 fans at Djokovic’s tennis center on the banks of the Danube in Belgrade last week. Dimitrov, Djokovic and Thiem, as well as the other players, were then seen partying at a packed Belgrade night spot. Thiem has since travelled to the south of France to play in another exhibition tournament, the Ultimate Tennis Showdown in Nice.